Table 69
Point Lookout Harbor Breakwaters
Au Gres, Michigan
Construction and Rehabilitation History
Construction of a 4,000-ft-long east and a 3,800-ft-long west break-
1972
water was completed. The breakwaters were rubble-mound structures
extending parallel into Saginaw Bay (Figure 186). They consisted of
cover stone laid on excavated material. Cover stone on the channel
sides consisted of
(min) material, and cover stone on the bay
material. The
sides of the breakwaters consisted of
breakwaters had 10-ft crest widths and side slopes of
for the
for the west structure. The crest el of
east breakwater and
to +12 ft lwd, and the west break-
the east breakwater ranged from
water had a crest el ranging from
to
ft
Approximately 1,300 tons of cover stone (1,500-300 lb) was placed
1976
along the bay side of the east breakwater in critical areas to pre-
vent failure of the structure.
to 1 ton) was placed along
Approximately 500 tons of cover stone
1978
the bay side of the west breakwater in areas to maintain stability
!
and prevent failure.
Stone was placed at the harbor, and the structures are currently in
1986
of the
good condition. An aerial photograph (photo taken in
Point Lookout Harbor breakwaters is shown in Figure 187.
,
286
1'
I
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